Wash. Admin. Code § 51-11C-40702 - Section C407.2-Mandatory requirements

C407.2 Mandatory requirements. Compliance with Section C407 also requires compliance with those sections shown in Table C407.2.

The building permit application for projects utilizing this method shall include in one submittal all building and mechanical drawings and all information necessary to verify that the building envelope and mechanical design for the project corresponds with the annual energy analysis. If credit is proposed to be taken for lighting energy savings, then an electrical permit application shall also be submitted and approved prior to the issuance of the building permit. If credit is proposed to be taken for energy savings from other components, then the corresponding permit application (e.g., plumbing, boiler, etc.) shall also be submitted and approved prior to the building permit application. Otherwise, components of the project that would not be approved as part of a building permit application shall be modeled in the baseline in accordance with ANSI/ASHRAE/IESNA 90.1 Appendix G and in the proposed model in accordance with the requirements of the Washington State Energy Code.

Table C407.2

Mandatory Compliance Measures for Total Building Performance Method

Sectiona	Title	Comments
Envelope
C401	Thermal envelope certificate
C402.2.7	Airspaces
C402.5	Air leakage
Mechanical
C403.1.2	Calculation of heating and cooling loads
C403.1.3	Data centers
C403.2	System design
C403.3.1	Equipment and system sizing
C403.3.2	HVAC equipment performance requirements
C403.3.3	Hot gas bypass limitation
C403.3.4.4	Boiler turndown
C403.4.1	Thermostatic controls
C403.4.2	Off-hour controls
C403.4.7	Combustion heating equipment controls
C403.4.8	Group R-1 hotel/ motel guestrooms	See Section C403.7.4
C403.4.9	Group R-2 and R-3 dwelling units
C403.4.10	Group R-2 sleeping units
C403.4.11	Direct digital control systems
C403.5.5	Economizer fault detection and diagnostics (FDD)
C403.7	Ventilation and exhaust systems	Except for C403.7.6.2
C403.8	Fan and fan controls
C403.9.1.1	Variable flow controls	For cooling tower fans [GREATER THAN EQUAL TO] 7.5
C403.9.1.2	Limitation on centrifugal fan cooling towers	For open cooling towers
C403.10	Construction of HVAC elements
C403.11	Mechanical systems located outside of the building thermal envelope
C403.14	Commissioning
Service Water Heating
	Service water heating	Except for C404.2.1
Lighting and Electrical
C405	Electrical power and lighting systems
Other Requirements
C407	Total building performance
C408	System commissioning
C409	Energy metering
C410	Refrigeration requirements
C411b	Renewable energy
C412	Compressed air systems

^a Reference to a code section includes all the relative subsections except as indicated in the table.

^b Compliance with any of these sections includes compliance with any exception to that section.

Notes

Wash. Admin. Code § 51-11C-40702

Amended by WSR 16-03-072, Filed 1/19/2016, effective 7/1/2016 Amended by WSR 19-24-040, Filed 11/26/2019, effective 7/1/2020 Amended by WSR 20-21-080, Filed 10/19/2020, effective 2/1/2021 Amended by WSR 22-14-091, Filed 7/1/2022, effective 7/1/2023 Amended by WSR 24-03-085, Filed 1/16/2024, effective 3/15/2024

Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. 13-04-056, § 51-11C-40702, filed 2/1/13, effective 7/1/13.